EP0064645A1 - Führungs- und Positioniermechanismus für die Bohrstange des Abstichloches am Schachtofen und Stichlochbohrmaschine mit einem solchen Mechanismus - Google Patents

Führungs- und Positioniermechanismus für die Bohrstange des Abstichloches am Schachtofen und Stichlochbohrmaschine mit einem solchen Mechanismus Download PDF

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Publication number
EP0064645A1
EP0064645A1 EP82103438A EP82103438A EP0064645A1 EP 0064645 A1 EP0064645 A1 EP 0064645A1 EP 82103438 A EP82103438 A EP 82103438A EP 82103438 A EP82103438 A EP 82103438A EP 0064645 A1 EP0064645 A1 EP 0064645A1
Authority
EP
European Patent Office
Prior art keywords
rod
drilling
jaws
carriage
piercing rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP82103438A
Other languages
English (en)
French (fr)
Inventor
Pierre Mailliet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paul Wurth SA
Original Assignee
Paul Wurth SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Paul Wurth SA filed Critical Paul Wurth SA
Publication of EP0064645A1 publication Critical patent/EP0064645A1/de
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/12—Opening or sealing the tap holes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/24—Guiding or centralising devices for drilling rods or pipes

Definitions

  • the present invention relates to a device for centering and guiding a rod for drilling the tap hole of a shaft furnace suitable for a method according to which the opening and closing of the tap hole respectively comprise an extraction operation and an operation to replace the drilling rod which is abandoned in the taphole between two successive castings, and designed to be mounted on the front end of the mount of a taphole drilling machine equipped a device for gripping the end of the piercing rod which can slide along the mounting of the machine.
  • the in- ven t ion also relates to a drilling machine equipped with a tap hole of such a centering and guiding device.
  • This patent also explains the problems linked to the use, for the implementation of this new process, of machines designed for the conventional drilling processes or to the design of machines suitable for the implementation of the two processes, namely the process either the drilling process mentioned in the preamble.
  • the object of the present invention is to solve this problem for this type of machine by means of a simple and effective centering and guiding device designed to be fixed on the front part of the carriage of a drilling machine.
  • the device proposed by the invention is essentially characterized by a clamp of which at least one of the jaws is pivotable about an axis substantially parallel to the axis of the gripping device, at least one of the the jaws being, moreover, bent or curved so as to delimit, in the closed position, between the jaws an opening large enough for the passage of the piercing rod.
  • One of the jaws is preferably fixed and secured to the carriage, while the other jaw is carried by a rotary shaft actuated by a hydraulic or pneumatic cylinder.
  • the invention also relates to a machine for drilling a tap hole of a shaft furnace comprising a working tool mounted on a carriage and capable of sliding along the latter and provided with a device for gripping a drilling rod, characterized by a centering and guiding device of the type described above, fixed to the front end of the mount, so that, in the closed position of the clamp, the opening remaining between the jaws located in alignment with the axis of the gripping device of the piercing rod.
  • the reference 10 designates the base of the wall of a blast furnace.
  • the reference 12 represents the taphole obstructed by a plugging mass 14, such as hardened clay, through which a drilling rod 16 has been introduced before hardening.
  • This drilling rod 16 is abandoned in the position shown until the next taphole opening operation, which consists in removing the piercing rod 16 to release the opening of the taphole 12.
  • this rod is provided at its end with a circular groove 18 or other equivalent means.
  • the reference 20 shows the mounting of a drilling machine equipped with such a percussion member not shown. S ince this tool is designed to travel along the mounting 20, can be used to extract the piercing rod 16, on condition that they provide a gripping device which can seize the rod 16 by the groove 18.
  • this gripping device to be able to grip the piercing rod, there must be alignment between the latter and the axis of the gripping device.
  • Figure 2 shows another example of the lookout trajectory when approaching the operative position.
  • the axis of the carriage and its gripping device is beyond the axis of the piercing rod at the time of approach towards the operating position, seen from the side of the pivot around which the carriage 20 rotates, the gripping device, the trajectory of which is represented by curve B, remains below that of the drilling rod 16 and the problem is ultimately the same for the two examples Figures 1 and 2.
  • FIGS. 3 to 6 illustrate an embodiment of a centering device proposed by the present invention for correcting this offset when the end of the piercing rod 16 is approached.
  • a clamp represented by 22 and comprising two jaws 24 and 26 is provided at the front end of the mount 20.
  • the jaw 26 is fixed and has a substantially straight inner edge, while the jaw 24 which is curved or bent is carried by a rotating shaft 28.
  • This shaft is connected by an arm 30 to the rod 32 of a jack 34 or of an electromechanical motor.
  • the action of this jack 34 allows the jaw 24 to pivot between an open position according to FIG. 4 and a closed position according to FIG. 6.
  • the piercing rod 16 is shown in an ideal central position aligned with the gripping device not shown.
  • the particular shape of the jaw 24 is intended to define a relatively large opening surface between the jaws 24 and 26 and to define, in position 26, a closed central surface (see FIG. 6) in which the rod 16 can slide.
  • the jaw 26 may, instead of being fixed, also be pivotally mounted and be actuated in synchronism with the jaw 24. Whether fixed or pivoting, the jaw 26 may, in addition, also have a bent or curved shape in order to define together with the jaw 24, in the closed position a passage ensuring the maintenance and the guiding of the piercing rod 16.
  • the fixed jaw 26 will be located on one side or the other depending on whether the mount approaches in accordance with FIG. 1 or according to FIG. 2.
  • This fixed jaw 26 will always be on the side where the distance from the trajectory is located with respect to the end of the piercing rod 16 when the end of the carriage approaches the latter.
  • the fixed jaw 26 will be on the right while looking towards the taphole, while in the case of FIG. 2, the fixed jaw 26 will be fixed on the left side of the lookout 20.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Blast Furnaces (AREA)
EP82103438A 1981-05-05 1982-04-23 Führungs- und Positioniermechanismus für die Bohrstange des Abstichloches am Schachtofen und Stichlochbohrmaschine mit einem solchen Mechanismus Withdrawn EP0064645A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU83335A LU83335A1 (fr) 1981-05-05 1981-05-05 Dispositif de centrage et de guidage d'une tige de percage du trou de coulee d'un four a cuve et perceuse pourvue d'un tel dispositif
LU83335 1981-05-05

Publications (1)

Publication Number Publication Date
EP0064645A1 true EP0064645A1 (de) 1982-11-17

Family

ID=19729642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103438A Withdrawn EP0064645A1 (de) 1981-05-05 1982-04-23 Führungs- und Positioniermechanismus für die Bohrstange des Abstichloches am Schachtofen und Stichlochbohrmaschine mit einem solchen Mechanismus

Country Status (6)

Country Link
EP (1) EP0064645A1 (de)
AR (1) AR227820A1 (de)
AU (1) AU553064B2 (de)
ES (1) ES8306862A1 (de)
LU (1) LU83335A1 (de)
ZA (1) ZA822787B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122844A1 (de) * 1983-04-12 1984-10-24 Societe Lorraine Et Meridionale De Laminage Continu - Solmer Abstichmaschine für Hochöfen durch Ausziehen der Bohrstange
GB2245521A (en) * 1990-07-03 1992-01-08 Psc Freyssinet Ltd Portable pressure exerting device
EP0519397A1 (de) * 1991-06-17 1992-12-23 Nippon Steel Corporation Stichlochbohrmaschine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727725A (en) * 1954-07-07 1955-12-20 Chicago Pneumatic Tool Co Drill steel centralizer
FR1264949A (fr) * 1960-08-11 1961-06-23 Boehler & Co Ag Geb Dispositif pour l'application et le guidage de tiges de forage
DE1226969B (de) * 1962-03-24 1966-10-20 Karl Ernst Riso Dipl Ing Fuehrungsgeraet fuer Bohrgestaenge fuer den Bergbau, insbesondere zum gefahrlosen Fuehren der Anfaenger-Bohrgestaenge beim Anbohren
US3756669A (en) * 1972-01-28 1973-09-04 Lee Norse Co Apparatus for holding a rotary tool
US3862750A (en) * 1972-10-17 1975-01-28 Inland Steel Co Tophole opening apparatus
FR2427568A1 (fr) * 1978-06-01 1979-12-28 Wurth Paul Sa Mecanisme de guidage et de positionnement de l'outil de travail d'une machine de percee ou d'obturation du trou de coulee d'un four a cuve
EP0025423A1 (de) * 1979-09-05 1981-03-18 Atlas Copco France S.A. Stichlochbohrapparat für Hochöfen
LU82943A1 (fr) * 1980-11-17 1981-03-26 Wurth Anciens Ets Paul Tete de guidage et de support d'une tige de percage du trou de coulee d'un four a cuve et perceuse pourvue d'une telle tete
GB2082494A (en) * 1980-08-25 1982-03-10 Tampella Oy Ab A drill steel centralizer

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727725A (en) * 1954-07-07 1955-12-20 Chicago Pneumatic Tool Co Drill steel centralizer
FR1264949A (fr) * 1960-08-11 1961-06-23 Boehler & Co Ag Geb Dispositif pour l'application et le guidage de tiges de forage
DE1226969B (de) * 1962-03-24 1966-10-20 Karl Ernst Riso Dipl Ing Fuehrungsgeraet fuer Bohrgestaenge fuer den Bergbau, insbesondere zum gefahrlosen Fuehren der Anfaenger-Bohrgestaenge beim Anbohren
US3756669A (en) * 1972-01-28 1973-09-04 Lee Norse Co Apparatus for holding a rotary tool
US3862750A (en) * 1972-10-17 1975-01-28 Inland Steel Co Tophole opening apparatus
FR2427568A1 (fr) * 1978-06-01 1979-12-28 Wurth Paul Sa Mecanisme de guidage et de positionnement de l'outil de travail d'une machine de percee ou d'obturation du trou de coulee d'un four a cuve
EP0025423A1 (de) * 1979-09-05 1981-03-18 Atlas Copco France S.A. Stichlochbohrapparat für Hochöfen
GB2082494A (en) * 1980-08-25 1982-03-10 Tampella Oy Ab A drill steel centralizer
LU82943A1 (fr) * 1980-11-17 1981-03-26 Wurth Anciens Ets Paul Tete de guidage et de support d'une tige de percage du trou de coulee d'un four a cuve et perceuse pourvue d'une telle tete

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122844A1 (de) * 1983-04-12 1984-10-24 Societe Lorraine Et Meridionale De Laminage Continu - Solmer Abstichmaschine für Hochöfen durch Ausziehen der Bohrstange
GB2245521A (en) * 1990-07-03 1992-01-08 Psc Freyssinet Ltd Portable pressure exerting device
EP0519397A1 (de) * 1991-06-17 1992-12-23 Nippon Steel Corporation Stichlochbohrmaschine

Also Published As

Publication number Publication date
AU553064B2 (en) 1986-07-03
AU8326282A (en) 1982-11-11
LU83335A1 (fr) 1983-03-24
ZA822787B (en) 1983-04-27
ES511608A0 (es) 1983-06-16
ES8306862A1 (es) 1983-06-16
AR227820A1 (es) 1982-12-15

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19830406

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Effective date: 19840928

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Inventor name: MAILLIET, PIERRE